- Little Miss Calamity, Little Miss Daredevil, Mr. Scatterbrain, and Mr. Stubborn are not in the books, but they were created for The Mr. Men Show.
- Terry Ward produced two Mr.Men shows, Mr.Men and Mr.Men and Little Misses. Arthur Lowe did not narrate Mr. Men and Little Misses, because he died in 1982.
- Some of the characters change in the books to someone good. Mr. Grumpy became happy, Mr.Uppity became polite and generous, and Mr.Greedy stopped eating too much.
- Roger Hargreaves' favorite book is Mr. Silly,because of silly behavior.
- Little Miss Twins were dedicated to Roger's daughters,Giles and Sophie.
- There are more than you can think of.